You could try adding more cowbell on a branch, test it with audiences, and revert if they don't like it. But branches are only really useful if you can merge.

You could try adding more cowbell on a branch, test it with audiences, and revert if they don't like it. But branches are only really useful if you can merge. If the more-cowbell branch tests well, and the faster-tempo branch also tests well, you'd like to merge them. But the file formats in music production don't generally allow such things.